Improvement in wood pavement



law

".FETERS. PHOTO'LITN-OGRAPHER. WASHINGTON. D. C?V

UNITED STATES PATENT OFFICE.,

TURNER COWING, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TOv TALL- MADGE E. BROWN, OF MEMPHIS, TENNESSEE.

IMPROVEMENT IN WOOD PAVEMENT.

Specification forming part of Letters Patent No. 101,590, dated April 5, 1870.

To all 'whom it may concern:

Be it known that I, TURNER GowING, of the city and county of San Francisco, in the State of California, vhave invented a new Mode of Constructing Wood Pavements for Streets 5 and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists in providin g and arranging blocks of a peculiar shape, in manner to form wedge-shaped crevices for the reception of earth or gravel, and

wherein such earth and gravel will be returned to act as a key to bind and confine the blocks in their place.

Figure l represents a section of road paved with the blocks, complete. Fig. 2 represents the straight side of a block, with the inclined side at E. Fig. 3 represents the top vof a block, and also the section of the base D. Fig. 4 represents the straight side of a block,

. which is set next to the inclined side of the It is obvious that the wedge-shaped crevices may also be formed vxby setting the above-described blocks so that two vertical sides and two inclined sides come together alternately, as shown in Fig. 5; and it is equally obvious that two blocks having their vertical sides together may be replaced by a single block, having two inclined faces, as shown in Fig. 6, without any material change of plan, and with a considerable saving of labor and expense in the construction.

To construct my pavement, prepare the roadway by grading it to the proper form, and ramming solid; then set the blocks as shown in Fig. l, confining them permanently between the curbs of walks; then fill and ram the crevices with earth and gravel.

I do not claim a wood pavement composed of wedge-shaped blocks when the blocks are laid alternately on the larger'and smaller ends so as to form a continuous surface of wood; but- What I do claim, and desire to secureby Letters Patent of the United States, is-

A wood pavement composed of blocks, each side having a single plane surface, and one or more of the sides being inclined, and the blocks being so laid on their larger ends as to form wedge-shaped grooves or spaces to receive concrete or other suitable filling, substantially as set forth.

TURNER COWING.

Witnesses:

W. O. ANDREWS, J. It. BRETT. 

